Lockheed Martin and U.S. Air Force complete flight test of Mk21A ICBM reentry vehicle

Lockheed Martin and the U.S. Air Force carried out an unarmed flight of the Mk21A reentry vehicle on 3 Nov 2026, launching it from Vandenberg Space Force Base over the Pacific. The test, performed under a contract valued at over $1 billion, demonstrated the vehicle’s architecture and next‑generation reentry technologies. Data collected will be used to refine the design and advance the program toward a critical design review.

Lockheed Martin says the flight validates key technologies for the future ICBM system, helping to keep the program on schedule and supporting national security objectives.

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